public class Main {
    public static void main(String[] args){
        int a=2;
        a+=2;//a=a+2
        System.out.println(a);

        int b=2;
        b-=1;//b=b-1
        System.out.println(b);

        int c=2;
        c*=3;//c=c*3
        System.out.println(c);

        int d=2;
        d/=2;//d=d/2
        System.out.println(d);
    }
}
